Hello to all and Happy New Year!.

I have an '86 Ford F-250 diesel 4X4 manual transmission (warner T-19) and I believe the borg warner transfer case. The speedometer has been erratic for some time and has finally given up alltogether. I replaced the cable and still no speedometer. The gauge works but upon inspecting the cable operation during driving, I noticed that the cable was not turning. I took the cruise control sending unit off and noticed that the gear was loaded with black crap in the gear grooves. I cleaned it all off and reinstalled it. Still no cable movement. I removed the sending unit again and stuck my finger into the opening and felt the gear to see if I could notice some wear. It had a definate depression in the middle of the gear and I was also able to move the gear freely with my finger in either direction. This was supposed to be a rebuilt transfer case less than a year ago BTW.

Is there anything I can do besides take the transfer case out and install a new sending unit gear and a new speedometer drive gear on the output shaft?

I was considering an after market system, but, the cost was to high. I also did not want a bunch of magnets and a pickup system hanging out under the truck.

Any suggestions? How hard would it be to drop the tx case? It doesn't look that hard. I usually do all my own work on my truck and my cars. Any other ideas?

The best of the New Year to all. Good health, Happiness and Good Fortune.

Thanks.

Ed Tavas.

 

I had the exact same problem in my 84 f-250, and all I did was take the yoke out from the back of the transfer case, take the seal out, and zip out one nut, and you can get to that speedometer gear. It is only a plastic gear, so they wear out easily, even if you stick your finger in there, and it seems to be ok, it is probably wore just enough to not work. You will have to take out your old gear, and see what color it is, so you can order the right one. There are about 4 or 5 different colors that they put in those trucks, depending on application. And you will probably have to order it through a transmission specialty shop, because some ford dealers might not carry it. By the way: it only cost me about $30.00 for the new gear, and a new seal.

 

pjohn, thank you very much. I am relieved to hear that I do not have to take the transfer case apart to get the gear out. I will give it a go as soon as I have a chance.

Again, thank you.

All the best to you and your family in the New Year.

Ed Tavas.